The latest version of this topic can be found at _variant_t::ChangeType.

Microsoft Specific**

Changes the type of the _variant_t object to the indicated VARTYPE.

      void ChangeType(  
   VARTYPE vartype,  
   const _variant_t* pSrc = NULL   


The VARTYPE for this _variant_t object.

A pointer to the _variant_t object to be converted. If this value is NULL, conversion is done in place.

This member function converts a _variant_t object into the indicated VARTYPE. If pSrc is NULL, the conversion is done in place, otherwise this _variant_t object is copied from pSrc and then converted.

END Microsoft Specific

_variant_t Class